#include <iostream>

using namespace std;
int main(int argc, char** argv){
string str = "flag:{VEg46R4m03a0170d16b045045f7c3a040a43c103a}"; string::iterator it_s; it_s = str.begin() + 15; cout << *it_s << endl;
for(it_s; it_s != str.end()-1; ++it_s){
*it_s ^= 0x7;
cout<< str<<endl;}}
